Clam seedling catching device

A technology of clam seedlings and ejectors, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of increasing fishing speed and fishing volume, failure of clam seedlings to survive, and high cost, so as to achieve large-scale fishing and improve breeding Survival rate, the effect of large promotion and application value

Inactive Publication Date: 2012-10-03
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, clam seedlings were mainly fished manually. At the bottom of several meters, trawl nets were used to pull up mud and sand together and then separated by sifting. The labor intensity was high and the yield was low. Thousands of people on the water catch clam seedlings together, but the supply is still in short supply
Some borrow some mud pumps and sand suction pumps to increase the fishing speed and catch volume, but clam seedlings cannot survive after being hit by the pump blades
Later, the jet pump produced in Taiwan was applied to increase the fishing output, but the cost was too high, and the power efficiency was less than one-third of that of the water pump, so the promotion was hindered.

Method used

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  • Clam seedling catching device

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Embodiment Construction

[0025] The structure of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] A clam seedling fishing device, comprising a water pump 1, a hydrocyclone 2, an ejector 4, a one-way valve 3, a clam seedling sorting unit 5 and a clam seedling suction head 6;

[0027] The water outlet pipe of the hydrocyclone 2 is connected with the water inlet pipe of the water pump 1;

[0028] The water outlet pipe of the water pump 1 is connected with the main water inlet pipe of the ejector 4;

[0029] The water outlet pipe of the jet 4 and the clam seedling sorting unit 5 are arranged in the water;

[0030] The effect of setting the drain under water on energy saving:

[0031] The suction cup mouth of the clam seedling suction head 6 is downward, and is adsorbed on the gravel surface of the underwater clam seedling;

[0032] The suction outlet of the clam seedling suction head 6 is connected with the water inlet pipe of the s...

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Abstract

The invention relates to a catching device for aquatic products, in particular to a clam seedling catching device. In the clam seedling catching device, a water outlet pipe of a rotary water separator (2) is connected with a water inlet pipe of a water pump (1); a water outlet pipe of the water pump (1) is connected with a main water inlet pipe of a flow ejector (4); a water outlet pipe of the flow ejector (4) is connected to a clam seedling sorting unit (5); a sucker opening of a clam seedling suction head (6) is adsorbed to a clam seedling gravel surface at water bottom downwards; a suctionopening of the clam seedling suction head (6) is connected with a water inlet pipe of the rotary water separator (2); a collection opening at the bottom of the rotary water separator (2) is connectedto a negative pressure water inlet of the flow ejector (4) by a check valve (3); the check valve (3) is controlled by the negative pressure of the flow ejector (4); and if the suction negative pressure of the flow ejector (4) is more than a set pressure value of the water pump (1), the check valve (3) is opened, and otherwise, the check valve (3) is closed to cut off a channel. In the clam seedling catching device, due to the zero-lift arrangement of the water pump, energy consumption is reduced by over 3 times, clam seedlings can be caught efficiently and quickly in batch, the problem that the clam seedling suction head (6) is blocked by barriers can be solved automatically, the clam seedlings are not damaged, and the subsequent aquaculture survival rate is improved.

Description

technical field [0001] The invention relates to a fishing device for aquatic products, in particular to a device for fishing clam seedlings in water. Background technique [0002] Clam meat is cold in nature, sweet and salty, rich in nutrition, and has high medicinal value. Clam meat is rich in protein, fat and minerals such as calcium, iron and phosphorus. Clearing away heat, removing dampness, and detoxifying are suitable for consumption during the hot seasons of summer and autumn. In particular, it is more suitable for those who suffer from yellow eyes, damp poison beriberi, and treatment of sores and carbuncles. Clam meat can increase and enrich people's diet variety and diet structure, and has high edible and medicinal value. [0003] The way of cultivating clam meat is to catch clam seedlings from rivers and seas in a certain season, and then put them into special lakes or ponds for rearing. After reaching a certain maturity, they can be caught and eaten. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 徐英士顾海涛何雅萍王君门涛
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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